JP4050920B2 - Disposable diapers - Google Patents

Disposable diapers Download PDF

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Publication number
JP4050920B2
JP4050920B2 JP2002079390A JP2002079390A JP4050920B2 JP 4050920 B2 JP4050920 B2 JP 4050920B2 JP 2002079390 A JP2002079390 A JP 2002079390A JP 2002079390 A JP2002079390 A JP 2002079390A JP 4050920 B2 JP4050920 B2 JP 4050920B2
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Prior art keywords
panel
diaper
extending
bending guide
wing
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Expired - Fee Related
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JP2002079390A
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JP2003275236A5 (en
JP2003275236A (en
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大尚 湊
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Uni Charm Corp
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Uni Charm Corp
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Priority to JP2002079390A priority Critical patent/JP4050920B2/en
Priority to TW092105358A priority patent/TWI247598B/en
Priority to EP03251529A priority patent/EP1346713A3/en
Priority to US10/390,171 priority patent/US7264614B2/en
Priority to KR1020030017049A priority patent/KR100971194B1/en
Priority to CNB031074154A priority patent/CN1287756C/en
Publication of JP2003275236A publication Critical patent/JP2003275236A/en
Publication of JP2003275236A5 publication Critical patent/JP2003275236A5/ja
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/494—Absorbent articles specially adapted to be worn around the waist, e.g. diapers characterised by edge leakage prevention means
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/493—Absorbent articles specially adapted to be worn around the waist, e.g. diapers adjustable by adding or removing material, e.g. umbilical cord arrangements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/49019—Form-fitting, self-adjusting disposable diapers with elastic means the elastic means being placed longitudinally, transversely or diagonally over the article
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/53—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium
    • A61F13/531—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad
    • A61F13/532—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the absorbing medium having a homogeneous composition through the thickness of the pad inhomogeneous in the plane of the pad
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/45—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators characterised by the shape
    • A61F13/49—Absorbent articles specially adapted to be worn around the waist, e.g. diapers
    • A61F13/49007—Form-fitting, self-adjusting disposable diapers
    • A61F13/49009—Form-fitting, self-adjusting disposable diapers with elastic means
    • A61F13/4902—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material
    • A61F2013/49031—Form-fitting, self-adjusting disposable diapers with elastic means characterised by the elastic material being elastic in longitudinal direction

Description

【０００１】
【発明の属する技術分野】
本発明は、排泄物を吸収、保持する使い捨ておむつに関する。
【０００２】
【従来の技術】
特開２００２−１１０４７公報は、透液性表面シートと不透液性裏面シートとの間に吸液性パネルが介在し、縦方向に前胴周り域および後胴周り域と、それら胴周り域の間に位置する股下域とを備え、パネルの両側縁の外側を縦方向へ延びる一対のサイドフラップと、パネルの両端縁の外側を横方向へ延びる一対のエンドフラップとを有し、平面形状が実質的に砂時計型を呈する解放型の使い捨ておむつを開示している。
【０００３】
パネルは、股下域から前後胴周り域へ向かって延びており、おむつの平面形状と同様に砂時計型を呈する。パネルは、前後胴周り域の横方向中央部に位置する前後胴周り当接部と、股下域の横方向中央部に位置する股下当接部と、前後胴周り当接部から横方向外方へ延びる一対の翼部とを有する。パネルは、フラッフパルプと高吸収性ポリマー粒子と熱可塑性合成樹脂繊維との混合物であり、所与厚みに圧縮されている。ゆえに、パネルは、その剛性が表裏面シートのそれよりも大きい。
【０００４】
このおむつを着用するには、後胴周り域のサイドフラップを前胴周り域のサイドフラップの外側に重ね合わせ、後胴周り域のサイドフラップに取り付けられたテープファスナを前胴周り域の外面に止着して前後胴周り域を連結する。前後胴周り域が連結されたおむつには、胴周り開口と、その下方に一対の脚周り開口とが形成される。
【０００５】
【発明が解決しようとする課題】
前記公報に開示のおむつでは、前後胴周り域を連結した着用状態において、それら胴周り域が環を形成したとしても、表裏面シートよりもその剛性が大きいパネルの翼部が着用者の胴部に沿って折れ曲がることはなく、翼部を着用者の胴部に密着させることが難しい。このおむつでは、パネルの翼部と着用者の胴部との間に隙間が生じ、翼部における排泄物吸収機能を十分に利用することができない場合がある。
【０００６】
本発明の課題は、着用したときにパネルの翼部を着用者の胴部に密着させることができ、翼部における排泄物吸収機能を十分に利用することができる使い捨ておむつを提供することにある。
【０００７】
【課題を解決するための手段】
前記課題を解決するための本発明の前提は、透液性表面シートおよび不透液性裏面シートと、それらシートの間に介在する吸液性パネルとから構成され、縦方向に前胴周り域および後胴周り域と、それら胴周り域の間に位置する股下域とを備え、前記パネルの両側縁の外側を縦方向へ延びるサイドフラップと、前記パネルの両端縁の外側を横方向へ延びるエンドフラップとを有し、前記パネルが、前記前後胴周り域の横方向中央部において縦方向に延びているパネル本体と、前記前後胴周り域のうちの少なくとも一方においてパネル本体から横方向外方に延び、縦方向に延びる折曲案内部によって前記パネル本体からその一部が分離されている一対の翼部とを有する使い捨ておむつである。
【０００８】
前記前提における本発明の特徴は、前記折曲案内部が、前記翼部の股下寄りに位置する内端縁から前記翼部のエンドフラップ寄りに位置する外端縁へ向かって延びており、前記縦方向に延びる伸縮性弾性部材が前記折曲案内部から横方向外方へ離間し、その縦方向の一端部が翼部につながり、かつ縦方向の他端部が前記股下域に位置し、前記サイドフラップに収縮可能に取り付けられていることにある。また、他の特徴として、前記折曲案内部が、前記翼部の股下域寄りに位置する内端縁から前記翼部のエンドフラップ寄りに位置する外端縁へ向かって延びており、縦方向に延びる伸縮性弾性部材が前記折曲案内部から横方向外方へ離間し、その縦方向の一端部が前記翼部につながり、かつ縦方向の他端部が前記股下域に位置し、前記サイドフラップに収縮可能に取り付けられ、前記折曲案内部に位置する前記パネルの剛性が、そこを除く該パネルの残余の剛性よりも低いことにある。
【００１０】
本発明の実施の態様の他の一例として、前記折曲案内部が、前記パネルが存在しない非存在域からなる。
【００１１】
本発明の実施の態様の他の一例として、前記折曲案内部が、前記パネルを厚み方向へ切断したスリットからなり、前記翼部の前記内外端部を縦断することによって、前記翼部が前記パネル本体から分断されている。
【００１２】
本発明の実施の態様の他の一例として、前記折曲案内部に位置するパネルの厚み寸法がそこを除くパネルの残余の厚み寸法よりも小さい。
【００１３】
【発明の実施の形態】
添付の図面を参照し、本発明にかかる使い捨ておむつの詳細を説明すると、以下のとおりである。
【００１４】
図１，２は、おむつ１Ａの部分破断平面図と、図１のおむつ１Ａの斜視図とであり、図３，４は、着用状態で示す図１のおむつ１Ａの斜視図と、図３のＡ−Ａ線端面図とである。図１，２では、横方向を矢印Ｘ、縦方向を矢印Ｙで示し、厚み方向を矢印Ｚで示す。なお、表裏面シート２，３や防漏シート５の内面とは、パネル４に対向する面をいい、それらシート２，３，５の外面とは、パネル４に非対向の面をいう。また、パネル４の上面とは、表面シート２に対向する面をいい、パネル４の下面とは、裏面シート３に対向する面をいう。
【００１５】
おむつ１Ａは、肌当接側に位置する透液性表面シート２と、肌非当接側に位置する不透液性裏面シート３と、表裏面シート２，３の間に介在してそれらシート２，３のうちの少なくとも一方の内面に固着された吸液性パネル４とから構成されている。おむつ１Ａは、表裏面シート２，３とパネル４との他に、表面シート２の外面に位置する不透液性防漏シート５を有する。
【００１６】
おむつ１Ａは、縦方向に前胴周り域６および後胴周り域８と、それら胴周り域６，８の間に位置する股下域７とを備え、パネル４の両側縁４ａの外側を縦方向へ延びる一対のサイドフラップ９と、パネル４の両端縁４ｂの外側を横方向へ延びる一対のエンドフラップ１０とを有する。おむつ１Ａは、サイドフラップ９が股下域７において横方向内方へ向かって弧を画いており、その平面形状が砂時計型を呈する。おむつ１Ａは、その着用時に前後胴周り域６，８を連結する開放型のものである。
【００１７】
パネル４は、股下域７から前後胴周り域６，８へ向かって延びている。パネル４は、前後胴周り域６，８の横方向中央部６ａ，８ａに位置する前後胴周り当接部１１，１３と、股下域７の横方向中央部７ａに位置する股下当接部１２と、前胴周り当接部１１から横方向外方へ延びる一対の翼部１４とを有する。パネル４の前胴周り当接部１１と翼部１４との間には、縦方向へ延びる折曲案内部１５が形成されている。
【００１８】
パネル４は、フラッフパルプと高吸収性ポリマー粒子との混合物、または、フラッフパルプと高吸収性ポリマー粒子と熱可塑性合成樹脂繊維との混合物であり、所与厚みに圧縮されている。ゆえに、パネル４は、その剛性が表裏面シート２，３のそれよりも大きい。パネル４は、それの型崩れやポリマー粒子の脱落を防止するため、全体がティッシュペーパーや親水性繊維不織布等の透液性シートに包被されていることが好ましい。
【００１９】
折曲案内部１５は、パネル４が存在しない非存在域１６から形成されている。折曲案内部１５は、翼部１４の股下域７寄りに位置する内端縁１４ａから翼部１４のエンドフラップ１０寄りに位置する外端縁１４ｂへ向かって延びている。折曲案内部１５は、内端縁１４ａから外端縁１４ｂへ向かって先細りのもので、実質的に三角形を呈する。
【００２０】
股下域７のサイドフラップ９には、縦方向へ直状に延びる１条の伸縮性弾性部材１７が配置されている。弾性部材１７は、股下当接部１２の両側縁４ａの外側に位置し、折曲案内部１５から横方向外方へ所与寸法離間している。弾性部材１７は、サイドフラップ９に収縮可能に取り付けられており、その縦方向端部１７ａが翼部１４の内端縁１４ａ近傍につながっている。折曲案内部１５と弾性部材１７との離間寸法は、１〜３０ｍｍの範囲にあることが好ましい。
【００２１】
股下域７のサイドフラップ９には、弾性部材１７から横方向外方へ所与寸法離間して縦方向へ延びる複数条の脚周り用弾性部材１８が収縮可能に取り付けられている。脚周り用弾性部材１８は、股下域７の横方向中央部７ａに向かって実質的に弧を画いている。エンドフラップ１０には、横方向へ延びる帯状の胴周り用弾性部材１９が収縮可能に取り付けられている。
【００２２】
防漏シート５は、サイドフラップ９に取り付けられて股下域７から前後胴周り域６，８へ向かって延びている。防漏シート５は、縦方向へ延びる固定側部５ａと、表面シート２の上方へ起立性向を有して縦方向へ延びる自由側部５ｂと、おむつ１Ａの横方向内方へ倒伏した固定両端部５ｃとを有する。自由側部５ｂには、縦方向へ延びる伸縮性弾性部材２０が収縮可能に取り付けられている。弾性部材２０は、自由側部５ｂの一部に被覆されている。
【００２３】
サイドフラップ９は、パネル４の両側縁４ａから横方向外方へ延びる表裏面シート２，３の側部２ａ，３ａと防漏シート５の固定側部５ａとから形成されている。サイドフラップ９では、表面シート２の側部２ａがパネル４の側縁４ａから横方向外方へわずかに延び、表面シート２の側部２ａからさらに横方向外方へ裏面シート３の側部３ａと防漏シート５の固定側部５ａとが延びている。側部２ａは、側部３ａと側部５ａとの間に介在し、それら側部３ａ，５ａの内面に固着されている。側部３ａと側部５ａとは、それら側部３ａ，５ａの互いに重なり合う部分においてそれら側部３ａ，５ａの内面どうしが固着されている。
【００２４】
弾性部材１７は、表面シート２の側部２ａと裏面シート３の側部３ａとの間に介在し、それらシート２，３の側部２ａ，３ａ内面に固着されている。弾性部材１７の縦方向端部１７ａは、裏面シート３とパネル４との間に介在し、裏面シート３の内面とパネル４の下面とに固着されている。脚周り用弾性部材１８は、裏面シート３の側部３ａと防漏シート５の固定側部５ａとの間に介在し、それらシート３，５の側部３ａ，５ａ内面に固着されている。
【００２５】
エンドフラップ１０は、パネル４の両端縁４ｂから縦方向外方へ延びる表裏面シート２，３の端部２ｂ，３ｂから形成されている。エンドフラップ１０では、表面シート２の端部２ｂと裏面シート３の端部３ｂとが互いに重なり合った状態で、それらシート２，３の端部２ｂ，３ｂ内面が固着されている。胴周り用弾性部材１９は、表面シート２の端部２ｂと裏面シート３の端部３ｂとの間に介在し、それらシート２，３の端部２ｂ，３ｂ内面に固着されている。防漏シート５の固定両端部５ｃは、表面シート２の端部２ｂ外面に固着されている。
【００２６】
後胴周り域８には、サイドフラップ９から横方向外方へ延びる一対のテープファスナ２１が取り付けられている。テープファスナ２１の自由端部には、粘着剤（図示せず）が塗布されている。前胴周り域６における裏面シート３の外面には、テープファスナ２１を着脱可能に止着する横方向へ長い矩形のターゲットテープ２２が取り付けられている。テープファスナ２１とターゲットテープ２２とは、可撓性を有するプラスチックフィルムから形成されている。
【００２７】
おむつ１Ａを着用するには、後胴周り域８のサイドフラップ９を前胴周り域６のサイドフラップ９の外側に重ね合わせ、粘着剤を介してテープファスナ２１の自由端部をターゲットテープ２２に止着し、前胴周り域６と後胴周り域８とを連結する。前後胴周り域６，８が連結されたおむつ１Ａには、胴周り開口２３とその下方に一対の脚周り開口２４とが形成される。おむつ１Ａでは、それを着用したときに、パネル４の前後胴周り当接部１１，１３が表面シート２を介して着用者の胴部に密着するとともに、パネル４の股下当接部１２が表面シート２を介して着用者の股間部に密着する。
【００２８】
着用状態にあるおむつ１Ａでは、図３に示すように、股下域７が着用者の股間部によって締め付けられ、弾性部材１７が股下域７の横方向中央部７ａへ引き寄せられるので、弾性部材１７が縦方向端部１７ａから股下域７に向かって、股下域７の横方向中央部７ａへ次第に近づくように傾斜する。
【００２９】
おむつ１Ａでは、それを着用したときに、前後胴周り域６，８が環を形成することによって、パネル４の翼部１４を折り曲げようとする力が作用する。さらに、おむつ１Ａでは、弾性部材１７の縦方向内方への収縮力が縦方向端部１７ａから股下域７の横方向中央部７ａへ向かって作用し、弾性部材１７の収縮力によってパネル４の翼部１４がおむつ１Ａの横方向内方へ引き寄せられる。おむつ１Ａでは、図４に矢印Ｘ１で示すように、翼部１４を折り曲げようとする力と弾性部材１７の収縮力とによって、パネル４の翼部１４が折曲案内部１５を介しておむつ１Ａの横方向内方へ向かって折れ曲がる。
【００３０】
おむつ１Ａでは、それを着用したときに、パネル４の翼部１４が横方向内方へ向かって折れ曲がるので、翼部１４を着用者の胴部に密着させることができ、翼部１４と着用者の胴部との間に隙間が生じることはなく、翼部１４における排泄物吸収機能を十分に利用することができる。
【００３１】
おむつ１Ａでは、折曲案内部１５がパネル４の非存在域１６から形成されているので、折曲案内部１５がパネル４の剛性の影響を受けることは少なく、翼部１４を折曲案内部１５で容易に折り曲げることができる。
【００３２】
おむつ１Ａでは、図２に示すように、それが表面シート２を内側にして縦方向へ湾曲すると、弾性部材２０が縦方向内方へ収縮し、防漏シート５の自由側部５ｂが表面シート２の上方へ起立する。おむつ１Ａでは、防漏シート５の自由側部５ｂが排泄物に対する障壁を形成するので、サイドフラップ９からの排泄物の漏れを防ぐことができる。
【００３３】
図５，６は、他の実施の形態を示すおむつ１Ｂの部分破断平面図と、図５のＢ−Ｂ線端面図とである。図５では、横方向を矢印Ｘで示し、縦方向を矢印Ｙで示す。
【００３４】
おむつ１Ｂは、その着用時に前後胴周り域６，８を連結する開放型のもので、透液性表面シート２および不透液性裏面シート３と、表裏面シート２，３の間に介在する吸液性パネル４とから構成されている。おむつ１Ｂは、一対のサイドフラップ９と一対のエンドフラップ１０とを有し、サイドフラップ９に不透液性防漏シート５が取り付けられている。
【００３５】
パネル４は、前後胴周り域６，８の横方向中央部６ａ，８ａに位置する前後胴周り当接部１１，１３と、股下域７の横方向中央部７ａに位置する股下当接部１２と、前後胴周り当接部１１，１３から横方向外方へ延びる一対の翼部１４とを有する。パネル４は、おむつ１Ｂの平面形状と同様に、砂時計型を呈する。パネル４の前胴周り当接部１１，１３と翼部１４との間には、縦方向へ延びる折曲案内部１５が形成されている。
【００３６】
折曲案内部１５は、そこに位置するパネル４の剛性が折曲案内部１５を除くパネル４の残余のそれよりも低い低剛性域２５から形成されている。折曲案内部２５は、翼部１４の内端縁１４ａから外端縁１４ｂへ向かって延び、外端縁１４ｂ近傍に達している。折曲案内部１５では、パネル４を形成する高吸収性ポリマー粒子と熱可塑性合成樹脂繊維とのうちの少なくとも一方の単位体積当たりの坪量が折曲案内部１５を除くパネル４の残余の単位体積当たりのそれよりも小さく、折曲案内部１５に位置するパネル４の厚み寸法が折曲案内部１５を除くパネル４の残余のそれよりも小さい。
【００３７】
股下域７のサイドフラップ９には、縦方向へ直状に延びる複数条の伸縮性弾性部材１７が配置されている。弾性部材１７は、股下当接部１２の両側縁４ａの外側に位置し、折曲案内部１５から横方向外方へ所与寸法離間している。弾性部材１７は、サイドフラップ９に収縮可能に取り付けられており、その縦方向端部１７ａが翼部１４の内端縁１４ａ近傍につながっている。折曲案内部１５と弾性部材１７との離間寸法は、図１のそれと同一である。
【００３８】
股下域７のサイドフラップ９には、弾性部材１７から横方向外方へ所与寸法離間して縦方向へ延びる複数条の脚周り用弾性部材１８が収縮可能に取り付けられている。エンドフラップ１０には、横方向へ延びる帯状の胴周り用弾性部材１９が収縮可能に取り付けられている。
【００３９】
おむつ１Ｂでは、それを着用したときに、弾性部材１７が縦方向端部１７ａから股下域７に向かって、股下域７の横方向中央部７ａへ次第に近づくように傾斜する。おむつ１Ｂでは、前後胴周り域６，８が環を形成することによって、パネル４の翼部１４を折り曲げようとする力が作用するとともに、縦方向端部１７ａから股下域７の横方向中央部７ａへ向かって作用する弾性部材１７の収縮力によって、パネル４の翼部１４がおむつ１Ｂの横方向内方へ引き寄せられ、翼部１４が折曲案内部１５を介しておむつ１Ｂの横方向内方へ向かって折れ曲がる。おむつ１Ｂでは、翼部１４を着用者の胴部に密着させることができ、翼部１４と着用者の胴部との間に隙間が生じることはなく、翼部１４における排泄物吸収機能を十分に利用することができる。
【００４０】
おむつ１Ｂでは、折曲案内部１５がパネル４の低剛性域２５から形成されているので、折曲案内部１５がパネル４の剛性の影響を受けることは少なく、翼部１４を折曲案内部１５で容易に折り曲げることができる。
【００４１】
図７，８は、他の実施の形態を示すおむつ１Ｃの部分破断平面図と、図７のＣ−Ｃ線端面図とである。図７では、横方向を矢印Ｘで示し、縦方向を矢印Ｙで示す。
【００４２】
おむつ１Ｃは、その着用時に前後胴周り域６，８を連結する開放型のもので、透液性表面シート２および不透液性裏面シート３と、表裏面シート２，３の間に介在する吸液性パネル４とから構成されている。おむつ１Ｃは、一対のサイドフラップ９と一対のエンドフラップ１０とを有し、サイドフラップ９に不透液性防漏シート５が取り付けられている。
【００４３】
パネル４は、前後胴周り域６，８の横方向中央部６ａ，８ａに位置する前後胴周り当接部１１，１３と、股下域７の横方向中央部７ａに位置する股下当接部１２と、前後胴周り当接部１１，１３から横方向外方へ延びる一対の翼部１４とを有する。パネル４は、おむつ１Ｃの平面形状と同様に、砂時計型を呈する。パネル４の前胴周り当接部１１，１３と翼部１４との間には、縦方向へ延びる折曲案内部１５が形成されている。
【００４４】
折曲案内部１５は、パネル４をその上面から下面に向かって厚み方向へ切断したスリット２６から形成されている。折曲案内部１５は、翼部１４の内端縁１４ａから外端縁１４ｂへ向かって延び、それら端部１４ａ，１４ｂを縦断している。前後胴周り当接部１１，１３と翼部１４とは、折曲案内部１５を挟んで分断されている。
【００４５】
股下域７のサイドフラップ９には、縦方向へ延びる１条の伸縮性弾性部材１７が配置されている。弾性部材１７は、股下当接部１２の両側縁４ａの外側に位置し、折曲案内部１５から横方向外方へ所与寸法離間している。弾性部材１７は、サイドフラップ９に収縮可能に取り付けられている。弾性部材１７は、股下域７の横方向中央部７ａへ向かって実質的に弧を画いている。折曲案内部１５と弾性部材１７との離間寸法は、図１のそれと同一である。
【００４６】
股下域７のサイドフラップ９には、弾性部材１７から横方向外方へ所与寸法離間して縦方向へ延びる複数条の脚周り用弾性部材１８が収縮可能に取り付けられている。エンドフラップ１０には、横方向へ延びる帯状の胴周り用弾性部材１９が収縮可能に取り付けられている。
【００４７】
おむつ１Ｃでは、それを着用したときに、弾性部材１７が縦方向端部１７ａから股下域７に向かって、股下域７の横方向中央部７ａへ次第に近づくように傾斜する。おむつ１Ｃでは、前後胴周り域６，８が環を形成することによって、パネル４の翼部１４を折り曲げようとする力が作用するとともに、縦方向端部１７ａから股下域７の横方向中央部７ａへ向かって作用する弾性部材１７の収縮力によって、パネル４の翼部１４がおむつ１Ｃの横方向内方へ引き寄せられ、翼部１４が折曲案内部１５を介しておむつ１Ｃの横方向内方へ向かって折れ曲がる。おむつ１Ｃでは、翼部１４を着用者の胴部に密着させることができ、翼部１４と着用者の胴部との間に隙間が生じることはなく、翼部１４における排泄物吸収機能を十分に利用することができる。
【００４８】
おむつ１Ｃでは、折曲案内部１５がパネル４をその厚み方向へ切断したスリット２６から形成されているので、折曲案内部１５がパネル４の剛性の影響を受けることがなく、翼部１４を折曲案内部１５で容易に折り曲げることができる。
【００４９】
おむつ１Ｃでは、弾性部材１７が股下域７の横方向中央部７ａへ向かって弧を画いているので、弾性部材１７の縦方向内方への収縮力が股下域７の横方向中央部７ａへ向かって作用し易く、パネル４の翼部１４を弾性部材１７の収縮力でおむつ１Ｃの横方向内方へ引き寄せることが一層容易である。
【００５０】
表面シート２には、親水性繊維不織布、多数の開孔を有する疎水性繊維不織布、微細な多数の開孔を有する透液性プラスチックフィルムのいずれかを使用することができる。裏面シート３や防漏シート５には、疎水性繊維不織布、通気不透液性プラスチックフィルム、疎水性繊維不織布を重ね合わせた複合不織布、疎水性繊維不織布と通気不透液性プラスチックフィルムとを重ね合わせた複合シートのいずれかを使用することができる。
【００５１】
裏面シート３や防漏シート５には、高い耐水性を有するメルトブローン法による繊維不織布の両面を、高い強度と良好な柔軟性とを有するスパンボンド法による繊維不織布で挟んだ複合不織布を使用することもできる。
【００５２】
不織布としては、スパンレース、ニードルパンチ、メルトブローン、サーマルボンド、スパンポンド、ケミカルボンド、エアースルー、の各製法により製造されたものを使用することができる。不織布の構成繊維としては、ポリオレフィン系、ポリエステル系、ポリアミド系、の各繊維、ポリエチレン／ポリプロピレンやポリエチレン／ポリエステルからなる芯鞘型複合繊維または並列型複合繊維を使用することができる。
【００５３】
シート２，３どうしの固着や表裏面シート２，３に対するパネル４の固着、表裏面シート２，３に対する防漏シート５の固着、シート２，３，５に対する弾性部材１７，１８，１９，２０の固着には、ホットメルト型接着剤、または、ヒートシールやソニックシール等の熱による溶着手段を利用することができる。
【００５４】
【発明の効果】
本発明にかかる使い捨ておむつによれば、パネルの胴周り当接部と翼部との間に折曲案内部が形成され、股下域のサイドフラップに折曲案内部から横方向外方へ所与寸法離間して縦方向へ延びる伸縮性弾性部材が収縮可能に取り付けられている。このおむつでは、それを着用したときに、股下域が着用者の股間部によって締め付けられ、弾性部材が股下域の横方向中央部へ引き寄せられるので、弾性部材が縦方向端部から股下域に向かって、股下域の横方向中央部へ次第に近づくように傾斜する。
【００５５】
このおむつでは、それを着用したときに、前後胴周り域が環を形成することのよって、パネルの翼部を折り曲げようとする力が作用するとともに、縦方向端部から股下域の横方向中央部へ向かって作用する弾性部材の収縮力によって、パネルの翼部がおむつの横方向内方へ引き寄せられ、翼部が折曲案内部を介しておむつの横方向内方へ向かって折れ曲がる。このおむつでは、翼部を着用者の胴部に密着させることができ、翼部と着用者の胴部との間に隙間が生じることはなく、翼部における排泄物吸収機能を十分に利用することができる。
【図面の簡単な説明】
【図１】 おむつの部分破断平面図。
【図２】 図１のおむつの斜視図。
【図３】 着用状態で示す図１のおむつの斜視図。
【図４】 図３のＡ−Ａ線端面図。
【図５】 他の実施の形態を示すおむつの部分破断平面図。
【図６】 図５のＢ−Ｂ線端面図。
【図７】 他の実施の形態を示すおむつの部分破断平面図。
【図８】 図７のＣ−Ｃ線端面図。
【符号の説明】
１Ａ 使い捨ておむつ
１Ｂ 使い捨ておむつ
１Ｃ 使い捨ておむつ
２ 透液性表面シート
３ 不透液性裏面シート
４ 吸液性パネル
４ａ 両側縁
４ｂ 両端縁
６ 前胴周り域
６ａ 横方向中央部
７ 股下域
７ａ 横方向中央部
８ 後胴周り域
８ａ 横方向中央部
９ サイドフラップ
１０ エンドフラップ
１１ 前胴周り当接部
１２ 股下当接部
１３ 後胴周り当接部
１４ 翼部
１４ａ 内端縁
１４ｂ 外端縁
１５ 折曲案内部
１６ 非存在域
１７ 伸縮性弾性部材
１７ａ 縦方向端部
２５ 低剛性域
２６ スリット[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a disposable diaper that absorbs and holds excrement.
[0002]
[Prior art]
JP 2002 -11047 publication, the liquid-absorbent panel interposed between a liquid-permeable topsheet and liquid-impermeable back sheet, longitudinally front waist region and the rear waist region and, these waist regions A pair of side flaps extending in the vertical direction on the outer sides of both side edges of the panel, and a pair of end flaps extending in the lateral direction on the outer sides of both end edges of the panel. Discloses an open-type disposable diaper substantially exhibiting an hourglass shape.
[0003]
The panel extends from the crotch region toward the front / rear waist region and has an hourglass shape similar to the planar shape of the diaper. The panel is laterally outward from the front and rear waist contact portion located in the lateral center of the front and rear waist region, the crotch contact portion located in the lateral center portion of the crotch region, and the front and rear waist contact portion. And a pair of wings extending to the front. The panel is a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic resin fibers and is compressed to a given thickness. Therefore, the rigidity of the panel is larger than that of the front and back sheets.
[0004]
To wear this diaper, the side flaps around the rear waistline are overlapped on the outside of the side flaps around the front waistline, and the tape fastener attached to the side flaps around the rear waistline is placed on the outer surface of the front waistline area. Fasten and connect the front and rear waist area. A diaper having a front and rear waist area connected thereto is formed with a waist circumference opening and a pair of leg circumference openings below the waist opening.
[0005]
[Problems to be solved by the invention]
In the diaper disclosed in the above publication, in the wearing state in which the front and rear waist regions are connected, even if these waist regions form a ring, the wings of the panel whose rigidity is greater than the front and back sheets are the wearer's torso It is difficult to make the wing part adhere to the wearer's trunk part. In this diaper, a gap is generated between the wing portion of the panel and the wearer's torso portion, and the excreta absorbing function in the wing portion may not be fully utilized.
[0006]
The subject of this invention is providing the disposable diaper which can make the wing | blade part of a panel closely_contact | adhere to a wearer's trunk | drum when it wears and can fully utilize the excrement absorption function in a wing | blade part. .
[0007]
[Means for Solving the Problems]
The premise of the present invention for solving the above problems is composed of a liquid-permeable top sheet and a liquid-impervious back sheet, and a liquid-absorbing panel interposed between the sheets, and the front waist area in the longitudinal direction. And a rear waist region and a crotch region located between the waist regions, side flaps extending in the vertical direction outside the both side edges of the panel, and extending in the lateral direction outside the both end edges of the panel An end flap, and the panel extends in the longitudinal direction at a laterally central portion of the front and rear waist region, and laterally outward from the panel body in at least one of the front and back waist regions A disposable diaper having a pair of wings that are partly separated from the panel main body by a bending guide part extending in the vertical direction.
[0008]
Feature of the present invention in the premise, the folding guide portion extends toward the edge inner located crotch toward the wing portion to the outer edge is located in the end flap closer of the wings, the stretchable elastic members extending in the longitudinal direction is between away laterally outward from said bending guide portion, Ri connected one end of its longitudinal direction to the wings, and the other end portion in the longitudinal direction in the crotch region Located and attached to the side flaps in a contractible manner. Further, as another feature, the bending guide part extends from an inner end edge located near the crotch region of the wing part toward an outer end edge located near the end flap of the wing part, and the vertical direction stretchable elastic members is between away laterally outward from said bending guide portion extending in its one end portion in the longitudinal direction Ri connected to the wings, and position the other end in the longitudinal direction in the crotch region And the rigidity of the panel which is attached to the side flap so as to be retractable and is located in the bending guide portion is lower than the rigidity of the rest of the panel excluding the panel.
[0010]
As another example of the embodiment of the present invention, the bending guide portion is formed of a non-existing area where the panel does not exist .
[0011]
As another example of the embodiment of the present invention, the bending guide portion is formed by a slit obtained by cutting the panel in the thickness direction, and the wing portion is formed by vertically cutting the inner and outer end portions of the wing portion. Separated from the panel body .
[0012]
As another example of the embodiment of the present invention, the thickness dimension of the panel located in the bending guide portion is smaller than the remaining thickness dimension of the panel excluding the thickness dimension .
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The details of the disposable diaper according to the present invention will be described with reference to the accompanying drawings.
[0014]
1 and 2 are a partially broken plan view of the diaper 1A and a perspective view of the diaper 1A of FIG. 1, and FIGS. 3 and 4 are a perspective view of the diaper 1A of FIG. It is an AA line end view. 1 and 2, the horizontal direction is indicated by an arrow X, the vertical direction is indicated by an arrow Y, and the thickness direction is indicated by an arrow Z. The inner surfaces of the front and back sheets 2 and 3 and the leak-proof sheet 5 are surfaces facing the panel 4, and the outer surfaces of the sheets 2, 3 and 5 are surfaces not facing the panel 4. Further, the upper surface of the panel 4 refers to the surface facing the top sheet 2, and the lower surface of the panel 4 refers to the surface facing the back sheet 3.
[0015]
The diaper 1A is interposed between a liquid-permeable surface sheet 2 located on the skin contact side, a liquid-impermeable back sheet 3 located on the skin non-contact side, and the front and back sheets 2 and 3. The liquid-absorbing panel 4 is fixed to the inner surface of at least one of 2 and 3. The diaper 1 </ b> A has a liquid-impervious leak-proof sheet 5 located on the outer surface of the top sheet 2 in addition to the front and back sheets 2 and 3 and the panel 4.
[0016]
The diaper 1 </ b> A includes a front waistline region 6 and a back waistline region 8 in the longitudinal direction, and a crotch region 7 positioned between the waistline regions 6, 8, and the outside of both side edges 4 a of the panel 4 in the longitudinal direction. A pair of side flaps 9 extending to the outside and a pair of end flaps 10 extending laterally outside the both end edges 4b of the panel 4 are provided. In the diaper 1A, the side flap 9 forms an arc inward in the lateral direction in the crotch region 7, and the planar shape thereof exhibits an hourglass shape. The diaper 1A is an open type that connects the front and rear waist regions 6, 8 when worn.
[0017]
The panel 4 extends from the crotch region 7 toward the front and rear waist regions 6 and 8. The panel 4 includes front and rear waist contact portions 11 and 13 positioned at the lateral center portions 6 a and 8 a of the front and rear waist regions 6 and 8, and a crotch contact portion 12 positioned at the lateral center portion 7 a of the crotch region 7. And a pair of wing portions 14 extending laterally outward from the front waistline abutting portion 11. A bending guide portion 15 extending in the vertical direction is formed between the front waist contact portion 11 and the wing portion 14 of the panel 4.
[0018]
The panel 4 is a mixture of fluff pulp and superabsorbent polymer particles, or a mixture of fluff pulp, superabsorbent polymer particles and thermoplastic synthetic fiber, and is compressed to a given thickness. Therefore, the panel 4 has a rigidity higher than that of the front and back sheets 2 and 3. The panel 4 is preferably encased entirely in a liquid-permeable sheet such as tissue paper or hydrophilic fiber nonwoven fabric in order to prevent its shape loss and dropping of the polymer particles.
[0019]
The bending guide portion 15 is formed from a non-existing area 16 where the panel 4 does not exist. The bending guide portion 15 extends from the inner end edge 14 a located near the crotch region 7 of the wing portion 14 toward the outer end edge 14 b located near the end flap 10 of the wing portion 14. The bending guide portion 15 is tapered from the inner end edge 14a toward the outer end edge 14b, and has a substantially triangular shape.
[0020]
On the side flaps 9 in the crotch region 7, a single elastic elastic member 17 that extends straight in the vertical direction is disposed. The elastic member 17 is located outside the both side edges 4a of the crotch contact portion 12, and is spaced apart from the folding guide portion 15 in the lateral direction by a given dimension. The elastic member 17 is attached to the side flap 9 so as to be contractible, and its longitudinal end portion 17 a is connected to the vicinity of the inner end edge 14 a of the wing portion 14. The distance between the bending guide portion 15 and the elastic member 17 is preferably in the range of 1 to 30 mm.
[0021]
A plurality of leg-around elastic members 18 extending in the vertical direction and spaced apart from the elastic member 17 by a predetermined dimension are attached to the side flaps 9 in the crotch region 7 so as to be contractible. The leg-around elastic member 18 substantially forms an arc toward the laterally central portion 7 a of the crotch region 7. A belt-like elastic member 19 around the trunk extending in the lateral direction is attached to the end flap 10 so as to be shrinkable.
[0022]
The leak-proof sheet 5 is attached to the side flap 9 and extends from the crotch region 7 toward the front and rear waist regions 6 and 8. The leak-proof sheet 5 includes a fixed side portion 5a extending in the vertical direction, a free side portion 5b extending in the vertical direction with a standing tendency toward the upper side of the top sheet 2, and fixed both ends lying inward in the horizontal direction of the diaper 1A. Part 5c. A stretchable elastic member 20 extending in the vertical direction is attached to the free side portion 5b so as to be shrinkable. The elastic member 20 is covered by a part of the free side portion 5b.
[0023]
The side flaps 9 are formed of side portions 2 a and 3 a of the front and back sheets 2 and 3 that extend laterally outward from both side edges 4 a of the panel 4 and a fixed side portion 5 a of the leak-proof sheet 5. In the side flap 9, the side portion 2 a of the top sheet 2 slightly extends laterally outward from the side edge 4 a of the panel 4, and further laterally outward from the side portion 2 a of the topsheet 2. And the fixed side part 5a of the leak-proof sheet 5 is extended. The side part 2a is interposed between the side part 3a and the side part 5a, and is fixed to the inner surfaces of the side parts 3a and 5a. In the side part 3a and the side part 5a, the inner surfaces of the side parts 3a and 5a are fixed to each other in the overlapping part of the side parts 3a and 5a.
[0024]
The elastic member 17 is interposed between the side part 2 a of the top sheet 2 and the side part 3 a of the back sheet 3, and is fixed to the inner surfaces of the side parts 2 a and 3 a of the sheets 2 and 3. The longitudinal end 17 a of the elastic member 17 is interposed between the back sheet 3 and the panel 4, and is fixed to the inner surface of the back sheet 3 and the lower surface of the panel 4. The leg-around elastic member 18 is interposed between the side portion 3a of the back sheet 3 and the fixed side portion 5a of the leak-proof sheet 5, and is fixed to the inner surfaces of the side portions 3a and 5a of the sheets 3 and 5.
[0025]
The end flap 10 is formed from end portions 2b and 3b of front and back sheets 2 and 3 that extend outward in the longitudinal direction from both end edges 4b of the panel 4. In the end flap 10, the inner surfaces of the end portions 2 b and 3 b of the sheets 2 and 3 are fixed in a state where the end portion 2 b of the top sheet 2 and the end portion 3 b of the back sheet 3 overlap each other. The waistline elastic member 19 is interposed between the end portion 2b of the top sheet 2 and the end portion 3b of the back sheet 3 and is fixed to the inner surfaces of the end portions 2b and 3b of the sheets 2 and 3. The fixed both end portions 5 c of the leak-proof sheet 5 are fixed to the outer surface of the end portion 2 b of the topsheet 2.
[0026]
A pair of tape fasteners 21 that extend laterally outward from the side flaps 9 are attached to the rear waistline region 8. An adhesive (not shown) is applied to the free end of the tape fastener 21. On the outer surface of the back sheet 3 in the front waist area 6, a rectangular target tape 22 that is long in the lateral direction is attached to which the tape fastener 21 is detachably fixed. The tape fastener 21 and the target tape 22 are formed from a flexible plastic film.
[0027]
In order to wear the diaper 1A, the side flaps 9 in the rear waistline region 8 are overlapped on the outside of the side flaps 9 in the front waistline region 6, and the free end of the tape fastener 21 is attached to the target tape 22 via an adhesive. The front waist area 6 and the rear waist area 8 are connected. In the diaper 1A to which the front and rear waist areas 6, 8 are connected, a waist opening 23 and a pair of leg openings 24 are formed below the waist opening 23. In the diaper 1 </ b> A, when the diaper 1 </ b> A is worn, the front and rear waist contact portions 11 and 13 of the panel 4 are in close contact with the wearer's waist portion through the surface sheet 2, and the crotch contact portion 12 of the panel 4 is the surface. The sheet 2 is in close contact with the wearer's crotch.
[0028]
In the diaper 1A in a worn state, as shown in FIG. 3, the crotch region 7 is tightened by the wearer's crotch portion, and the elastic member 17 is drawn toward the lateral central portion 7 a of the crotch region 7. It inclines so that it may approach gradually the horizontal direction center part 7a of the crotch area 7 toward the crotch area 7 from the vertical direction edge part 17a.
[0029]
In the diaper 1 </ b> A, when the diaper 1 </ b> A is worn, a force to bend the wing part 14 of the panel 4 acts as the front and rear waist regions 6 and 8 form a ring. Further, in the diaper 1 </ b> A, the contracting force in the longitudinal direction of the elastic member 17 acts from the longitudinal end portion 17 a toward the lateral central portion 7 a of the crotch region 7, and the contracting force of the elastic member 17 causes the panel 4 to contract. The wing part 14 is drawn inward in the lateral direction of the diaper 1A. In the diaper 1 </ b> A, as indicated by an arrow X <b> 1 in FIG. 4, the wing part 14 of the panel 4 is connected to the diaper 1 </ b> A through the bending guide part 15 by the force for bending the wing part 14 and the contraction force of the elastic member 17. Bend toward the inside in the horizontal direction.
[0030]
In the diaper 1A, the wing part 14 of the panel 4 is bent inward in the lateral direction when the diaper 1A is worn, so that the wing part 14 can be brought into close contact with the wearer's torso. A gap is not generated between the wing portion 14 and the excrement absorbing function in the wing portion 14 can be fully utilized.
[0031]
In the diaper 1 </ b> A, since the bending guide portion 15 is formed from the non-existing area 16 of the panel 4, the bending guide portion 15 is hardly affected by the rigidity of the panel 4, and the wing portion 14 is not bent. 15 can be easily bent.
[0032]
In the diaper 1 </ b> A, as shown in FIG. 2, when it is curved in the longitudinal direction with the topsheet 2 inside, the elastic member 20 contracts inward in the longitudinal direction, and the free side portion 5 b of the leakproof sheet 5 is the topsheet. Stand up above 2. In the diaper 1 </ b> A, the free side portion 5 b of the leak-proof sheet 5 forms a barrier against excrement, and therefore leakage of excrement from the side flap 9 can be prevented.
[0033]
5 and 6 are a partially broken plan view of a diaper 1B showing another embodiment and an end view taken along line BB in FIG. In FIG. 5, the horizontal direction is indicated by an arrow X, and the vertical direction is indicated by an arrow Y.
[0034]
The diaper 1 </ b> B is an open type that connects the front and rear waist regions 6 and 8 when worn, and is interposed between the liquid-permeable surface sheet 2 and the liquid-impermeable back sheet 3 and the front and back sheets 2 and 3. The liquid-absorbent panel 4 is comprised. The diaper 1 </ b> B has a pair of side flaps 9 and a pair of end flaps 10, and the liquid-impervious leak-proof sheet 5 is attached to the side flaps 9.
[0035]
The panel 4 includes front and rear waist contact portions 11 and 13 positioned at the lateral center portions 6 a and 8 a of the front and rear waist regions 6 and 8, and a crotch contact portion 12 positioned at the lateral center portion 7 a of the crotch region 7. And a pair of wing portions 14 extending outward in the lateral direction from the front and rear waist contact portions 11 and 13. The panel 4 has an hourglass shape similar to the planar shape of the diaper 1B. A bending guide portion 15 extending in the vertical direction is formed between the front waistline abutting portions 11 and 13 of the panel 4 and the wing portion 14.
[0036]
The bending guide portion 15 is formed of a low rigidity region 25 in which the rigidity of the panel 4 located there is lower than that of the remaining portion of the panel 4 excluding the bending guide portion 15. The bending guide part 25 extends from the inner end edge 14a of the wing part 14 toward the outer end edge 14b and reaches the vicinity of the outer end edge 14b. In the bending guide portion 15, the basis weight per unit volume of at least one of the superabsorbent polymer particles and the thermoplastic synthetic resin fibers forming the panel 4 is the remaining unit of the panel 4 excluding the bending guide portion 15. It is smaller than that per volume, and the thickness dimension of the panel 4 located in the bending guide portion 15 is smaller than that of the remainder of the panel 4 excluding the bending guide portion 15.
[0037]
A plurality of stretchable elastic members 17 extending straight in the vertical direction are arranged on the side flaps 9 in the crotch region 7. The elastic member 17 is located outside the both side edges 4a of the crotch contact portion 12, and is spaced apart from the folding guide portion 15 in the lateral direction by a given dimension. The elastic member 17 is attached to the side flap 9 so as to be contractible, and its longitudinal end portion 17 a is connected to the vicinity of the inner end edge 14 a of the wing portion 14. The distance between the bending guide 15 and the elastic member 17 is the same as that in FIG.
[0038]
A plurality of leg-around elastic members 18 extending in the vertical direction and spaced apart from the elastic member 17 by a predetermined dimension are attached to the side flaps 9 in the crotch region 7 so as to be contractible. A belt-like elastic member 19 around the trunk extending in the lateral direction is attached to the end flap 10 so as to be shrinkable.
[0039]
In the diaper 1 </ b> B, when the diaper 1 </ b> B is worn, the elastic member 17 is inclined from the longitudinal end portion 17 a toward the crotch region 7 so as to gradually approach the lateral central portion 7 a of the crotch region 7. In the diaper 1 </ b> B, the front and rear waist regions 6 and 8 form a ring, so that a force to bend the wing portion 14 of the panel 4 acts and the lateral center of the crotch region 7 from the longitudinal end 17 a. The wing part 14 of the panel 4 is drawn inward in the lateral direction of the diaper 1 </ b> B by the contraction force of the elastic member 17 acting toward 7 a, and the wing part 14 passes through the bending guide part 15 in the lateral direction of the diaper 1 </ b> B. Bend towards you. In the diaper 1B, the wing part 14 can be brought into close contact with the wearer's torso, and there is no gap between the wing part 14 and the wearer's torso, and the excrement absorbing function in the wing part 14 is sufficient. Can be used.
[0040]
In the diaper 1B, since the bending guide portion 15 is formed from the low rigidity region 25 of the panel 4, the bending guide portion 15 is hardly affected by the rigidity of the panel 4, and the wing portion 14 is bent. 15 can be easily bent.
[0041]
7 and 8 are a partially broken plan view of a diaper 1C showing another embodiment, and an end view taken along the line CC of FIG. In FIG. 7, the horizontal direction is indicated by an arrow X, and the vertical direction is indicated by an arrow Y.
[0042]
The diaper 1 </ b> C is an open type that connects the front and rear waist regions 6, 8 when worn, and is interposed between the liquid-permeable surface sheet 2 and the liquid-impermeable back sheet 3 and the front and back sheets 2, 3. The liquid-absorbent panel 4 is comprised. The diaper 1 </ b> C has a pair of side flaps 9 and a pair of end flaps 10, and the liquid-impervious leakproof sheet 5 is attached to the side flaps 9.
[0043]
The panel 4 includes front and rear waist contact portions 11 and 13 positioned at the lateral center portions 6 a and 8 a of the front and rear waist regions 6 and 8, and a crotch contact portion 12 positioned at the lateral center portion 7 a of the crotch region 7. And a pair of wing portions 14 extending outward in the lateral direction from the front and rear waist contact portions 11 and 13. The panel 4 has an hourglass shape similar to the planar shape of the diaper 1C. A bending guide portion 15 extending in the vertical direction is formed between the front waistline abutting portions 11 and 13 of the panel 4 and the wing portion 14.
[0044]
The bending guide portion 15 is formed of a slit 26 that cuts the panel 4 in the thickness direction from its upper surface toward its lower surface. The bending guide portion 15 extends from the inner end edge 14a of the wing portion 14 toward the outer end edge 14b, and vertically cuts the end portions 14a and 14b. The front and rear waist contact portions 11 and 13 and the wing portion 14 are divided with the bending guide portion 15 interposed therebetween.
[0045]
On the side flaps 9 in the crotch region 7, one stretch elastic member 17 extending in the vertical direction is disposed. The elastic member 17 is located outside the both side edges 4a of the crotch contact portion 12, and is spaced apart from the folding guide portion 15 in the lateral direction by a given dimension. The elastic member 17 is attached to the side flap 9 so as to be shrinkable. The elastic member 17 substantially forms an arc toward the laterally central portion 7 a of the crotch region 7. The distance between the bending guide 15 and the elastic member 17 is the same as that in FIG.
[0046]
A plurality of leg-around elastic members 18 extending in the vertical direction and spaced apart from the elastic member 17 by a predetermined dimension are attached to the side flaps 9 in the crotch region 7 so as to be contractible. A belt-like elastic member 19 around the trunk extending in the lateral direction is attached to the end flap 10 so as to be shrinkable.
[0047]
In the diaper 1 </ b> C, when the diaper 1 </ b> C is worn, the elastic member 17 is inclined from the longitudinal end portion 17 a toward the crotch region 7 so as to gradually approach the lateral center portion 7 a of the crotch region 7. In the diaper 1 </ b> C, the front and rear waist regions 6 and 8 form a ring, so that a force to bend the wing portion 14 of the panel 4 acts and the lateral center of the crotch region 7 from the longitudinal end portion 17 a. The wing part 14 of the panel 4 is drawn inward in the lateral direction of the diaper 1 </ b> C by the contraction force of the elastic member 17 acting toward 7 a, and the wing part 14 passes through the bending guide part 15 in the lateral direction of the diaper 1 </ b> C. Bend towards you. In the diaper 1C, the wing part 14 can be brought into close contact with the wearer's torso, and there is no gap between the wing part 14 and the wearer's torso, and the excrement absorbing function in the wing part 14 is sufficient. Can be used.
[0048]
In the diaper 1 </ b> C, the bending guide portion 15 is formed from the slit 26 that cuts the panel 4 in the thickness direction thereof, so that the bending guide portion 15 is not affected by the rigidity of the panel 4, and the wing portion 14 is removed. It can be easily bent by the bending guide section 15.
[0049]
In the diaper 1 </ b> C, the elastic member 17 forms an arc toward the laterally central portion 7 a of the crotch region 7, so that the contracting force of the elastic member 17 inward in the longitudinal direction is applied to the laterally central portion 7 a of the crotch region 7. It is easier to act and the wings 14 of the panel 4 are more easily pulled inward in the lateral direction of the diaper 1 </ b> C by the contraction force of the elastic member 17.
[0050]
As the top sheet 2, any of a hydrophilic fiber nonwoven fabric, a hydrophobic fiber nonwoven fabric having a large number of openings, and a liquid-permeable plastic film having a large number of fine holes can be used. On the back sheet 3 and the leak-proof sheet 5 , a hydrophobic non-woven fabric, a gas-permeable liquid-impervious plastic film, a composite non-woven fabric in which a hydrophobic fiber non-woven fabric is superimposed, a hydrophobic fiber non-woven fabric and a gas-permeable liquid-impervious plastic film are stacked. Any of the combined composite sheets can be used.
[0051]
For the back sheet 3 and the leak-proof sheet 5, use is made of a composite nonwoven fabric in which both sides of a fiber nonwoven fabric by melt-blown method having high water resistance are sandwiched by fiber nonwoven fabric by spunbond method having high strength and good flexibility. You can also.
[0052]
As a nonwoven fabric, what was manufactured by each manufacturing method of a spunlace, a needle punch, a melt blown, a thermal bond, a spun pond, a chemical bond, and an air through can be used. As the constituent fibers of the nonwoven fabric, polyolefin-based, polyester-based, polyamide-based fibers, core-sheath type composite fibers or parallel type composite fibers made of polyethylene / polypropylene or polyethylene / polyester can be used.
[0053]
Adherence between the sheets 2 and 3, adhering of the panel 4 to the front and back sheets 2 and 3, adhering of the leak-proof sheet 5 to the front and back sheets 2 and 3, and elastic members 17 , 18, 19 and 20 to the sheets 2, 3 and 5 For the fixing, a hot melt adhesive or a heat welding means such as heat seal or sonic seal can be used.
[0054]
【The invention's effect】
According to the disposable diaper according to the present invention, the bending guide part is formed between the waist contact part of the panel and the wing part, and the side flap in the crotch region is given laterally outward from the bending guide part. A stretchable elastic member that is spaced apart and extends in the longitudinal direction is attached to be shrinkable. In this diaper, when the diaper is worn, the crotch region is tightened by the crotch portion of the wearer, and the elastic member is drawn toward the lateral center of the crotch region, so that the elastic member is directed from the longitudinal end to the crotch region. Then, it inclines so as to gradually approach the lateral center of the crotch region.
[0055]
In this diaper, when the diaper is worn, the front and rear torso areas form a ring, which acts to fold the wings of the panel, and from the longitudinal end to the lateral center of the crotch area. Due to the contraction force of the elastic member acting toward the part, the wing part of the panel is drawn inward in the lateral direction of the diaper, and the wing part bends inward in the lateral direction of the diaper via the folding guide part. In this diaper, the wings can be brought into close contact with the wearer's torso, there is no gap between the wings and the wearer's torso, and the excrement absorbing function in the wings is fully utilized. be able to.
[Brief description of the drawings]
FIG. 1 is a partially broken plan view of a diaper.
FIG. 2 is a perspective view of the diaper of FIG.
3 is a perspective view of the diaper of FIG. 1 shown in a worn state.
4 is an end view taken along line AA in FIG. 3. FIG.
FIG. 5 is a partially broken plan view of a diaper showing another embodiment.
6 is an end view taken along line BB in FIG.
FIG. 7 is a partially cutaway plan view of a diaper showing another embodiment.
FIG. 8 is an end view taken along the line CC in FIG. 7;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1A Disposable diaper 1B Disposable diaper 1C Disposable diaper 2 Liquid-permeable surface sheet 3 Liquid-impermeable back sheet 4 Liquid-absorbing panel 4a Both-side edge 4b Both-end edge 6 Front waist area 6a Horizontal center part 7 Inseam area 7a Horizontal center Part 8 Rear waist area 8a Lateral center part 9 Side flap 10 End flap 11 Front waist contact part 12 Inseam contact part 13 Rear waist contact part 14 Wing part 14a Inner edge 14b Outer edge 15 Bending Guide part 16 Non-existing area 17 Stretchable elastic member 17a Longitudinal end 25 Low rigidity area 26 Slit

Claims (4)

透液性表面シートおよび不透液性裏面シートと、それらシートの間に介在する吸液性パネルとから構成され、縦方向に前胴周り域および後胴周り域と、それら胴周り域の間に位置する股下域とを備え、前記パネルの両側縁の外側を前記縦方向へ延びるサイドフラップと、前記パネルの両端縁の外側を横方向へ延びるエンドフラップとを有し、前記パネルが、前記前後胴周り域の横方向中央部において前記縦方向に延びているパネル本体と、前記前後胴周り域のうちの少なくとも一方において前記パネル本体から横方向外方に延び、前記縦方向に延びる折曲案内部によって前記パネル本体からその一部が分離されている一対の翼部とを有する使い捨ておむつにおいて、
前記折曲案内部が、前記翼部の股下寄りに位置する内端縁から前記翼部のエンドフラップ寄りに位置する外端縁へ向かって延びており、前記縦方向に延びる伸縮性弾性部材が前記折曲案内部から横方向外方へ離間し、その縦方向の一端が翼部につながり、かつ縦方向の他端が前記股下域に位置し、前記サイドフラップに収縮可能に取り付けられていることを特徴とする前記おむつ。It is composed of a liquid-permeable front sheet and a liquid-impervious back sheet, and a liquid-absorbing panel interposed between the sheets, and the front waist area and the back waist area in the vertical direction, and between the waist areas A side flap extending in the longitudinal direction outside the both side edges of the panel, and an end flap extending in the lateral direction outside the both end edges of the panel, the panel comprising: A panel main body extending in the vertical direction at a central portion in the horizontal direction of the front and rear waist region, and a bend extending in the vertical direction from the panel main body at least one of the front and rear waist regions in the lateral direction. In a disposable diaper having a pair of wings, part of which is separated from the panel body by a guide,
The bending guide portion extends from an inner end edge located near the crotch of the wing portion toward an outer end edge located near the end flap of the wing portion, and an elastic elastic member extending in the longitudinal direction is provided. Separated outward from the bending guide portion in the lateral direction, one end in the longitudinal direction is connected to the wing portion, and the other end in the longitudinal direction is located in the crotch region, and is attached to the side flap so as to be contractible. Said diaper characterized by the above-mentioned. 透液性表面シートおよび不透液性裏面シートと、それらシートの間に介在する吸液性パネルとから構成され、縦方向に前胴周り域および後胴周り域と、それら胴周り域の間に位置する股下域とを備え、前記パネルの両側縁の外側を縦方向へ延びるサイドフラップと、前記パネルの両端縁の外側を横方向へ延びるエンドフラップとを有し、前記パネルが、前記前後胴周り域の横方向中央部において前記縦方向に延びているパネル本体と、前記前後胴周り域のうちの少なくとも一方において前記パネル本体から横方向外方に延びる一対の翼部とを有し、縦方向に延びる折曲案内部が、前記パネル本体と前記翼部との間に形成されている使い捨ておむつにおいて、
前記折曲案内部が、前記翼部の股下域寄りに位置する内端縁から前記翼部のエンドフラップ寄りに位置する外端縁へ向かって延びており、縦方向に延びる伸縮性弾性部材が前記折曲案内部から横方向外方へ離間し、その縦方向の一端が前記翼部につながり、かつ縦方向の他端が前記股下域に位置し、前記サイドフラップに収縮可能に取り付けられ、前記折曲案内部に位置する前記パネルの剛性が、そこを除く該パネルの残余の剛性よりも低いことを特徴とする前記おむつ。It is composed of a liquid-permeable front sheet and a liquid-impervious back sheet, and a liquid-absorbing panel interposed between the sheets, and the front waist area and the back waist area in the vertical direction, and between the waist areas A side flap extending in the vertical direction on the outside of both side edges of the panel, and an end flap extending in the lateral direction on the outside of both end edges of the panel. A panel main body extending in the vertical direction at a laterally central portion of the waist area, and a pair of wings extending laterally outward from the panel body in at least one of the front and rear waist areas; In the disposable diaper in which the bending guide portion extending in the vertical direction is formed between the panel body and the wing portion,
The bending guide part extends from an inner end edge located near the crotch region of the wing part toward an outer end edge located near the end flap of the wing part, and a stretchable elastic member extending in the longitudinal direction is provided. Separated outward from the bending guide portion in the lateral direction, one end in the longitudinal direction is connected to the wing, and the other end in the longitudinal direction is located in the crotch region, and is attached to the side flaps so as to be contractible, The said diaper characterized by the rigidity of the said panel located in the said bending guide part being lower than the rigidity of the remainder of this panel except there. 前記折曲案内部が、前記パネルが存在しない非存在域からなる請求項１記載の前記おむつ。The said diaper of Claim 1 which the said bending guide part consists of a non-existing area where the said panel does not exist. 前記折曲案内部に位置するパネルの厚み寸法がそこを除くパネルの残余の厚み寸法よりも小さい請求項２記載の前記おむつ。The diaper according to claim 2, wherein a thickness dimension of the panel located in the bending guide portion is smaller than a remaining thickness dimension of the panel excluding the thickness dimension.
JP2002079390A 2002-03-20 2002-03-20 Disposable diapers Expired - Fee Related JP4050920B2 (en)

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TW092105358A TWI247598B (en) 2002-03-20 2003-03-12 Disposable diaper
EP03251529A EP1346713A3 (en) 2002-03-20 2003-03-13 Disposable diaper
US10/390,171 US7264614B2 (en) 2002-03-20 2003-03-18 Disposable diaper having folding guides for improved fit
KR1020030017049A KR100971194B1 (en) 2002-03-20 2003-03-19 Disposable diaper
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